Monday, October 28, 2013

DUE NOVEMBER 1!!!

A triangle has sides of 10(x-1), (4x +14), and 22 in.  The perimeter of the triangle is 82 inches.  What is x?


You do not need three sentences!

20 comments:

  1. 10x-10+4x+14=60
    14x+4=60
    -4 -4
    14x=56
    14 14
    x=4
    The answer would be 4.

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    Replies
    1. I agree with Nikola but another way to do this is 10(x-1)=4x+14.
      The answer would still be the same, which is 4.

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    2. I agree with nikola because
      10x10+4x+14=60
      +414x=56
      -4 -4
      14x=56
      -14 -14
      x=4
      x=4 so there for the a
      nswer would be 4.

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    3. I agree with Nikola . I found the answer by plugging in numbers.

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    4. i agree with nick if you do it another way it would be the same answer x=4

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  2. x would equal 2.8 because you don't have the x from 4 x to 14 and you divide the answer which would be 14 by 5. so x would be 2.8.

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  3. I agree with nikola but this is how I would have done it 10(x-1)=4x+14 then got x on one side then solve the equation and I would get 4

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  4. I agree with nikola to because he did the same exact way I did.So the answer is 4

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  5. I agree with Daivon and Cassandra. X is 4 and I know this because I used the equation 14x+26=82 and when I solved the equation the solution was 4.

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  6. I agree with nikola because x = 4 because (14*4+26=82)

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  7. I agree with Nikola. x=4.
    82-22=60.
    60/2 = 30
    For 10(x-1) substitute x as 4. 4-1 = 3. 10(3) = 30.
    For 4x+14, 4(4)= 16. 16+14 = 30.
    30+30+22= 82.
    Mary Thongleuth

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  8. I agree with them because when you solve the problem x=4

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  9. 10x-10+4x+14=60 combine like terms.

    14x+4=60 subtract 4 from both sides of the equation.

    14x=56
    14x divided by 14 = x
    56 divided by 14 = 4
    x = 4

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    Replies
    1. I agree with Caleb and everybody else who said the answer was 4 because all you had to do was set up the equation 10x-10+4x+14=60. Then what you do is you combine 10x with 4x and combine -10 with 14.Then what you have left is 14x+4=60 which you divide 4 from 4 and 60. the you get 14x=56. Then divide 14x by 14 and divide 14 by 56 and you get x=4
      SO X = 4

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  10. I agree with all the people who said that the answer is x = 4.
    If you do it step by step, you should have drawn a triangle, and for the sides, make one side 10(x-1), another side (4x+14), and make the last side 22. Next, you should add them all together: 10(x-1) + (4x+14) + 22 = 82. Distribute if needed. This equation should then come out to 10x-10 + 4x+14 + 22 = 82. Next, add like terms. This will come out to 14x + 26 = 82. Subtract 26 from each side. 14x = 56. Then divide both sides by 14. This will come out to x = 4.

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  11. Yes. I agree with all as well.
    x=4
    Like terms added up comes out to the equation 14x+26=82
    solve to 2step equation, subtract from both sides 14x=82
    divide 82 by the number 14, leaving 14x canceled x=4

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    Replies
    1. I agree with those before me because 82-22=60 making the equation
      10x-10+4x+14=60 then after combining like terms is 14x+4=60 then you subtract 4 from both sides making 14x=56 then divide 14 from both sides thus concluding x=4

      DionJare Scott

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  12. I also agree with Nikola and everyone. In order to find out what x is you first have to rewrite the problem in a equation, 10x-10+4x+14=60. Then you simplify it into a smaller equation 14x+4=60. Then you solve it. You need to subtract 4 from both sides and you get 14x=56. Then you divide 14 from both sides. Then you get 4. So that is my answer and the reason why I agree with nikola and everyone.

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  13. I agree with Nikola When you do 10x-10+4=60 Where i got the 60 from was 82-22 which equal 60 than now i add all the X together and the number so it be 14x+4=60.
    than you subtract 4 from both side so you can get x itself than you get 14x=54. Than you divide 14 from both side Where X=4.

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